This document compares and contrasts life in a small town, Santiponce, a small city, Seville, and a large city, London. It notes that Santiponce has a very small population of around 8,500 people, little traffic, and people mainly live in houses. Seville has a larger population of around 700,000, more traffic, and people live in both houses and flats. London is described as a very large and noisy city with almost 9 million residents, too much traffic, and people living in both houses and flats. It then lists and defines different types of buildings and services commonly found in towns/cities.